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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Workflow\Metadata;
use Symfony\Component\Workflow\Exception\InvalidArgumentException;
use Symfony\Component\Workflow\Transition;
/**
* @author Grégoire Pineau <lyrixx@lyrixx.info>
*/
trait GetMetadataTrait
{
public function getMetadata(string $key, $subject = null)
{
if (null === $subject) {
return $this->getWorkflowMetadata()[$key] ?? null;
}
if (\is_string($subject)) {
$metadataBag = $this->getPlaceMetadata($subject);
if (!$metadataBag) {
return null;
}
return $metadataBag[$key] ?? null;
}
if ($subject instanceof Transition) {
$metadataBag = $this->getTransitionMetadata($subject);
if (!$metadataBag) {
return null;
}
return $metadataBag[$key] ?? null;
}
throw new InvalidArgumentException(sprintf('Could not find a MetadataBag for the subject of type "%s".', get_debug_type($subject)));
}
}